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led support and amp control added #258

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led support and amp control added #258

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19 changes: 18 additions & 1 deletion pod/SimpleOscillator/SimpleOscillator.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@ using namespace daisysp;
DaisyPod hw;
Oscillator osc;
Parameter p_freq;
Parameter p_amp;

uint8_t waveforms[NUM_WAVEFORMS] = {
Oscillator::WAVE_SIN,
Expand All @@ -18,8 +19,10 @@ uint8_t waveforms[NUM_WAVEFORMS] = {
};

static float freq;
static float amp;
float sig;
static int waveform, octave;
static int waveform, octave, ampVal;
Color my_colors[5];

static void AudioCallback(AudioHandle::InterleavingInputBuffer in,
AudioHandle::InterleavingOutputBuffer out,
Expand All @@ -39,7 +42,9 @@ static void AudioCallback(AudioHandle::InterleavingInputBuffer in,

// convert MIDI to frequency and multiply by octave size
freq = mtof(p_freq.Process() + (octave * 12));
amp = mtof(p_amp.Process() + (ampVal * 12));
osc.SetFreq(freq);
osc.SetAmp(amp);

// Audio Loop
for(size_t i = 0; i < size; i += 2)
Expand All @@ -48,6 +53,9 @@ static void AudioCallback(AudioHandle::InterleavingInputBuffer in,
sig = osc.Process();
out[i] = sig;
out[i + 1] = sig;
hw.led1.SetColor(my_colors[octave]);
hw.led2.SetColor(my_colors[waveform]);
hw.UpdateLeds();
}
}

Expand All @@ -56,6 +64,9 @@ void InitSynth(float samplerate)
// Init freq Parameter to knob1 using MIDI note numbers
// min 10, max 127, curve linear
p_freq.Init(hw.knob1, 0, 127, Parameter::LINEAR);
// Init amp Parameter to knob2 using MIDI note numbers
// min 10, max 127, curve linear
p_amp.Init(hw.knob2, 0, 127, Parameter::LINEAR);

osc.Init(samplerate);
osc.SetAmp(1.f);
Expand All @@ -74,6 +85,12 @@ int main(void)
samplerate = hw.AudioSampleRate();
InitSynth(samplerate);

my_colors[0].Init(Color::PresetColor::RED);
my_colors[1].Init(Color::PresetColor::GREEN);
my_colors[2].Init(Color::PresetColor::BLUE);
my_colors[3].Init(Color::PresetColor::WHITE);
my_colors[4].Init(Color::PresetColor::PURPLE);

// start callbacks
hw.StartAdc();
hw.StartAudio(AudioCallback);
Expand Down